While lasers are inherently very stable, for many high precision scientific experiments, an even higher degree of precision is necessary. To goal of this poject is to transfer the stability of a laser who's frequency is locked to a atomic transition, to an unstable laser. The basic setup will use well a established technique of a scanning transfer cavity lock. Todo Get get analog inputs setup Output trianglewave Sync triangle wave with scan Data analyser to detect voltage peaks Identify wavelength difference Provide laser feedback Setup GUI